Ingersoll-Rand Sierra H 125 User Manual

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SL, SM & SH 90, 110, 132, 150, 200, 250 & 300 (50Hz)

L, H & HH 125, 150, 200, 250, 300, 350 & 400 (60Hz)

This manual contains

important safety information

and must be made available

to personnel who operate and

maintain this machine.

OPERATION AND MAINTENANCE MANUAL

LIBRO D’USO E MANUTENZIONE

MANUAL DE MANEJO Y MANTENIMIENTO

MANUAL DE OPERAÇAO E CONSERVAÇAO

C.C.N. : 80441306

REV. : D

DATE : JANUARY 2010

en pt it es

ENGLISH

PRINT LANGUAGE

PORTUGUESE

SPANISH

ITALIAN

Table of Contents

Questions and Answers:

W
William HuangAug 25, 2025
What causes a Ingersoll-Rand Sierra H 125 Air Compressor to fail to load?
- W
  William WilliamsAug 25, 2025
  If your Ingersoll-Rand Air Compressor fails to load, start by checking for leaking seals in the hydraulic cylinder. If the cylinder doesn't fully stroke when the 'Load' button is pressed, overhaul the hydraulic cylinder. Also, check for a defective load solenoid valve by removing the tube that runs from the load solenoid valve to the hydraulic cylinder. Start the compressor and press the 'Load' button; if oil doesn't come out of the solenoid valve, replace it.
E
ebowmanAug 27, 2025
How to get rid of water in Ingersoll-Rand Sierra H 125 Air Compressor system?
- M
  mary22Aug 27, 2025
  If you find water in your Ingersoll-Rand Air Compressor system, start by inspecting the moisture separator/drain trap for defects and clean if required; replace if defective. Check the trap drain and drain piping for any blockages and clean them. Inspect and clean the aftercooler core if it's dirty. Ensure all enclosure panels are in place. If the unit lacks an aftercooler, consider installing one. Finally, ensure the drain line/drip leg is correctly installed, sloping the drain line away from the trap and installing a drip leg.
S
scott30Aug 31, 2025
Why is my Ingersoll-Rand Sierra H 125 Air Compressor making so much noise?
- B
  brittanyhenryAug 31, 2025
  If your Ingersoll-Rand Air Compressor has an excessive noise level, inspect and tighten any loose component mountings. Ensure that all enclosure panels are in place. If the compressor itself is defective, contact an authorized distributor immediately and do not operate the unit.
J
Jodi CoxSep 4, 2025
What to do with excessive vibration of Ingersoll-Rand Sierra H 125 Air Compressor?
- W
  wfergusonSep 4, 2025
  If your Ingersoll-Rand Air Compressor is experiencing excessive vibration, inspect and tighten any loose components. If the motor or compressor bearing has failed, contact an authorized distributor immediately and do not operate the unit. Inspect the area for other equipment that may be causing external vibrations.
R
Renee BennettSep 7, 2025
Why does the pressure relief valve keep opening on my Ingersoll-Rand Sierra H 125 Air Compressor?
- D
  David ProctorSep 7, 2025
  If the pressure relief valve on your Ingersoll-Rand Air Compressor opens, it could be due to the compressor operating over pressure; adjust the controller set points. Alternatively, the valve itself may be defective and require replacement.

Ingersoll-Rand Sierra H 125 Specifications

General

Brand	Ingersoll-Rand
Model	Sierra H 125
Category	Air Compressor
Language	English

Summary

Operation and Maintenance Manual

Important Safety Information

Manual contains crucial safety information for operators.

Safety Precautions

General Safety Warnings and Cautions

Mandatory instructions to prevent injury, death, or damage.

Compressed Air and Electrical Hazards

Risks associated with compressed air and electrical systems.

Installation and Handling Procedures

General Installation Notes and Cautions

Motor Installation and Checks

Operating Instructions

Control Panel Overview and Buttons

Explanation of the Intellisys control panel buttons and their functions.

Display Screens and Navigation

Operator Setpoints and Options

Configuration of adjustable variables and optional machine functions.

Sensor Calibration and Alarm History

Warning and Alarm Messages

Interpretation and handling of warning and alarm conditions.

Trouble Shooting Guide

Compressor Fails to Start or Shuts Down

Troubleshooting steps for common startup and shutdown issues.

Low System Air Pressure Issues

Diagnosing and resolving problems related to low air pressure.

Noise, Vibration, and Water in System Issues

Pressure Relief Valve and Load Issues

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